#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright 2021 Tianmian Tech. All Rights Reserved.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Copyright 2019 The FATE Authors. All Rights Reserved.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


#
from kernel.base.params.base_param import BaseParam


class EncryptedModeCalculatorParam(BaseParam):
    """
    Define the encrypted_mode_calulator parameters.

    Parameters
    ----------
    mode: str, support 'strict', 'fast', 'balance', 'confusion_opt', ' only, default: strict

    re_encrypted_rate: float or int, numeric number in [0, 1], use when mode equals to 'balance, default: 1

    """

    def __init__(self, mode="strict", re_encrypted_rate=1):
        self.mode = mode
        self.re_encrypted_rate = re_encrypted_rate

    def check(self):
        descr = "encrypted_mode_calculator param"
        self.mode = self.check_and_change_lower(self.mode,
                                                ["strict", "fast", "balance", "confusion_opt", "confusion_opt_balance"],
                                                descr)

        if self.mode in ["balance", "confusion_opt_balance"]:
            if type(self.re_encrypted_rate).__name__ not in ["int", "long", "float"]:
                raise ValueError("re_encrypted_rate should be a numeric number")

            if not 0.0 <= self.re_encrypted_rate <= 1:
                raise ValueError("re_encrypted_rate should  in [0, 1]")

        return True
